Welcome to the official website of Sydney International Open. Here you can find all the information about the tournament, including schedule, prizes, entries list, and results. You can also watch live games when the tournament starts.

About the Tournament

Sydney International Open (SIO) is one of the biggest chess tournaments in Australia. It attracts beginners to grandmasters from all parts of Australia and from several other countries around the world. The tournament has two categories (1) Open, in which anyone with any rating can play, and (2) Challengers, in which only those with ACF ratings lower then 1900 can play.